Sean Lee had been the “bell cow” of the Cowboys defense this season. But the Cowboys had to make do without Lee for most of the night against the Saints as he watched the second half on the sideline in street clothes. Lee pulled his left hamstring with 13:46 remaining in the second quarter and will undergo an MRI on Monday.
Cowboys owner Jerry Jones said he is "concerned." (Fort Worth Star-Telegram)

FFToday's Take:Fox Sports is reporting Lee will miss 3-4 weeks, dealing a significant blow to a player who was emerging as one of the best - if not the best - middle linebacker in football. The Cowboys' defense completely fell apart in Week 10 without Lee, who has yet to make it through a full season. Justin Durant replaced Lee before leaving with a hamstring injury of his own. Ernie Sims, Kyle Bosworth and Cameron Lawrence were left to play alongside Bruce Carter.